A) O is more electronegative than S
B) 0-H bond is stronger than S-H bond
C) O -H bond is weaker than S-H bond
D) none of the above
Correct Answer: B
Solution :
Key Idea: Proton donors are acids. Between \[{{H}_{2}}O\] and \[{{H}_{2}}S\] the molecule which is having weaker bond, will give \[{{H}^{+}}\] ion easily and hence more acidic. \[\because \] \[{{H}_{2}}S\] larger in size as compared to \[{{H}_{2}}O\]. \[\because \]\[{{H}_{2}}S\] can be dissociated easily and therefore it can easily give H4 ions. \[\therefore \] \[{{H}_{2}}S\] is more acidic than \[{{H}_{2}}O\].
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